java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/real-life/Elevator-Integer.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:32:01,634 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:32:01,636 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:32:01,650 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:32:01,651 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:32:01,652 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:32:01,653 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:32:01,655 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:32:01,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:32:01,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:32:01,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:32:01,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:32:01,660 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:32:01,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:32:01,663 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:32:01,664 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:32:01,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:32:01,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:32:01,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:32:01,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:32:01,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:32:01,684 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:32:01,690 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:32:01,690 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:32:01,690 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:32:01,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:32:01,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:32:01,694 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:32:01,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:32:01,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:32:01,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:32:01,698 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:32:01,698 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:32:01,698 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:32:01,699 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:32:01,700 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:32:01,700 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-30 21:32:01,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:32:01,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:32:01,721 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:32:01,721 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:32:01,723 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:32:01,724 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:32:01,724 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:32:01,724 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:32:01,724 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:32:01,725 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:32:01,725 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:32:01,725 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:32:01,725 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:32:01,726 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:32:01,726 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:32:01,726 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:32:01,726 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:32:01,728 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:32:01,728 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:32:01,728 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:32:01,729 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:32:01,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:32:01,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:32:01,729 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:32:01,730 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:32:01,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:32:01,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:32:01,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:32:01,819 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:32:01,819 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:32:01,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator-Integer.bpl [2018-09-30 21:32:01,820 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator-Integer.bpl' [2018-09-30 21:32:01,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:32:01,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:32:01,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:32:01,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:32:01,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:32:01,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,930 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 21:32:01,931 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 21:32:01,931 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 21:32:01,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:32:01,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:32:01,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:32:01,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:32:01,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... [2018-09-30 21:32:01,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:32:01,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:32:01,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:32:01,973 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:32:01,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:32:02,035 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-09-30 21:32:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-09-30 21:32:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-09-30 21:32:03,876 INFO L345 CfgBuilder]: Using library mode [2018-09-30 21:32:03,877 INFO L202 PluginConnector]: Adding new model Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:32:03 BoogieIcfgContainer [2018-09-30 21:32:03,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:32:03,877 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:32:03,878 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:32:03,895 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:32:03,896 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:32:03" (1/1) ... [2018-09-30 21:32:03,912 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:32:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 21:32:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 21:32:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:32:03,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-30 21:32:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-30 21:32:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:32:04,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 9 states and 14 transitions. [2018-09-30 21:32:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 14 transitions. [2018-09-30 21:32:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:32:06,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-30 21:32:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-30 21:32:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:32:09,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:12,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 17 states and 41 transitions. [2018-09-30 21:32:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 41 transitions. [2018-09-30 21:32:12,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:32:12,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 26 states and 79 transitions. [2018-09-30 21:32:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 79 transitions. [2018-09-30 21:32:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:32:18,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 32 states and 110 transitions. [2018-09-30 21:32:32,475 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 110 transitions. [2018-09-30 21:32:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:32:32,476 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:33:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:33:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 45 states and 170 transitions. [2018-09-30 21:33:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 170 transitions. [2018-09-30 21:33:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:33:03,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:33:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:33:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:33:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:33:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 51 states and 191 transitions. [2018-09-30 21:33:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 191 transitions. [2018-09-30 21:33:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 21:33:36,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:33:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:33:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:34:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:34:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 56 states and 213 transitions. [2018-09-30 21:34:16,957 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 213 transitions. [2018-09-30 21:34:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 21:34:16,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:34:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:34:18,655 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:34:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:34:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 58 states and 216 transitions. [2018-09-30 21:34:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 216 transitions. [2018-09-30 21:34:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-30 21:34:35,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:34:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:34:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:36:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:36:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 17 states and 46 transitions. [2018-09-30 21:36:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 46 transitions. [2018-09-30 21:36:21,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 21:36:21,514 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 0 iterations. [2018-09-30 21:36:21,525 INFO L776 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown